EP1624102A2 - Shaking device for reciprocatingly moving a body along an axis thereof - Google Patents

Shaking device for reciprocatingly moving a body along an axis thereof Download PDF

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Publication number
EP1624102A2
EP1624102A2 EP05106888A EP05106888A EP1624102A2 EP 1624102 A2 EP1624102 A2 EP 1624102A2 EP 05106888 A EP05106888 A EP 05106888A EP 05106888 A EP05106888 A EP 05106888A EP 1624102 A2 EP1624102 A2 EP 1624102A2
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EP
European Patent Office
Prior art keywords
movable
motor
eccentric
shaking
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05106888A
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German (de)
French (fr)
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EP1624102A3 (en
EP1624102B1 (en
Inventor
Willi Berretz
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Voith Patent GmbH
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Voith Patent GmbH
Voith Paper Patent GmbH
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Priority to PL05106888T priority Critical patent/PL1624102T3/en
Publication of EP1624102A2 publication Critical patent/EP1624102A2/en
Publication of EP1624102A3 publication Critical patent/EP1624102A3/en
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Publication of EP1624102B1 publication Critical patent/EP1624102B1/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/18—Shaking apparatus for wire-cloths and associated parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase

Definitions

  • the invention relates to a shaking device for reciprocating a body along an axis thereof, in particular a roller of a fibrous web producing machine having a first, connected to the body in the direction of the body axis eccentric drive with a first motor and a second, with the body in the direction of the body axis connected eccentric drive having a second motor, wherein the eccentric position of the two eccentric drives is mutually adjustable to adjust the stroke of the reciprocating motion of the body, and wherein the two eccentric drives on or in a common and movable or movable Means are mounted, and having a system for centering or to maintain a common zero point between the body and the device with respect to external disturbances.
  • the invention further relates to a method for reciprocating a body along an axis thereof, in particular a roller of a machine producing a fibrous web, having the features of the preamble of independent claim 7.
  • This largely reaction-free working shaking device is based on directly driven mass pairs by means of highly dynamic three-phase drives with angular synchronism control, the mass pairs in a hydrostatically mounted Device, such as a carriage, a frame or a frame, are arranged.
  • a mass force acting on a shaking rod can be adjusted continuously.
  • the frequency can also be adjusted continuously.
  • the transmission of the rotational energy generated by means of the shaking on the exemplary breast roll of a fibrous web producing machine is a system oscillating in a horizontal direction - with a common mechanical zero point.
  • the centering or maintenance of the common zero point with respect to external disturbances is achieved by a system which has a spring preload generated by a plurality of centering springs.
  • the centering springs of the system are arranged between the device and fixed components or the like.
  • a disadvantage of this system is that the centering of the springs must be adapted to the particular installation situation. Moreover, the centering springs may have resonances in the possible working range and, moreover, reaction forces are constantly transmitted to the foundation.
  • the invention has for its object to provide a shaking device and a corresponding shaking method of the type mentioned, which only perform a "gentle" position correction of the device when acting from the outside disturbances acting on the shaker.
  • the shaking device should be carried out economically and practically.
  • a shaking device in that as a system for centering or for maintaining a common Zero point between the body and the device with respect to externally acting disturbances is provided by a control device acted upon motorized adjustment.
  • the motorized adjusting device behaves passively. In the event of interference, a force counteracting the disturbance is applied via the motorized adjustment device, so that the desired zero position is maintained via the control device.
  • the motorized adjustment device has a stationarily arranged primary part and a secondary part arranged on the movable or movable device or that the motorized adjustment device has a primary part arranged on the movable or displaceable device and a fixedly arranged secondary part.
  • the motorized adjustment can therefore be arranged depending on the application with constant operating characteristics.
  • the motorized adjusting device preferably comprises an electric motor, in particular a three-phase linear motor, or a hydraulic or pneumatic drive, wherein the housing of the electric motor or the hydraulic or pneumatic drive ideally stationary and the output is ideally located on the movable or movable device.
  • these drives are particularly suitable for the purpose of driving the adjusting device, since they work largely free from contact and wear.
  • the existing hydraulic oil of the device hydrostatics can be used as cooling medium for an electric motor for the primary part of the drive.
  • the control device comprises at least one arranged on the device sensor for detecting the actual position and a controller with a setpoint generator and a switched over a power point on the adjusting control variable.
  • the motorized adjusting means of electric motor, the power point of the linear drive to the existing Geichwoods frinik the two-phase rotary eccentric can be electrically coupled.
  • the power controller for the linear motor would thus consist of only one inverter and the electrical energy would be taken from the common DC voltage intermediate circuit or fed back.
  • the senor is preferably designed as a displacement sensor and via the control device is preferably any desired zero position of the movable or movable device can be predetermined.
  • This embodiment of the control device allows use in a variety of possible applications, with proven and inexpensive control components can be used.
  • the object according to the invention is achieved in a shaking method by providing a motorized adjusting device acted on by a control device as the system.
  • FIG. 1 shows a side view of a known shaking device 1 for reciprocating a roller 2 of a not shown and a fibrous web producing machine.
  • the roller 2 is rotatably mounted on schematically indicated roller bearings 3, 4 and movable in the axial direction.
  • the roller 2 is connected to the shaking device 1 by means of a generally detachable coupling 5.
  • the shaking device 1 is used for shaking the roller 2 in the axial direction of the roller 2, as indicated by a double arrow 6.
  • the shaking device 1 has a device 7, for example, a carriage, a frame or a frame, which is mounted on Mahslagern 8, 9 in the direction of the double arrow 6, that is movable or movable in the axial direction of the roller 2.
  • the device 7 is provided at one axial end with a drive rod 10, which merges into the coupling 5, such that a reciprocating movement of the device 7 leads to a corresponding reciprocating movement of the roller 2.
  • a first eccentric drive 11 and a second eccentric drive 11 are provided on the device 7.
  • the first eccentric drive 11 is formed by a pair of flywheel mass bodies 14, 15, which are mounted symmetrically to a roll axis 13 of the roller 2 rotatably in the device 7.
  • the second eccentric 12 is formed by a pair of flywheel masses 16, 17, which are also mounted rotatably in the device 7 symmetrical to the roll axis 13.
  • the flywheel mass body 14, 15 and 16, 17 of the respective eccentric drives 11, 12 are rotationally coupled to each other (see Figure 2).
  • a system 18 which causes the centering or maintaining the common zero point N (circle with double arrow) with respect to externally acting disturbances.
  • the system 18 to summarizes a plurality of each spring bias generating centering springs 19, which are arranged between the device 7 and fixed and, for example, on the foundation components 20.
  • the centering springs 19 act in particular in the axial direction of the roller 2, as indicated by a double arrow 6.
  • FIG. 2 shows a side view of a shaking device 1 according to the invention for reciprocating a roller 2 of a machine, not shown, and producing a fibrous web.
  • a shaking device 1 for reciprocating a roller 2 of a machine, not shown, and producing a fibrous web.
  • an acceleration sensor 21 and a displacement sensor 22 are further provided which receive the acceleration and the position of the device 7 and forward the acceleration signal to a control device 23.
  • the control device 23 controls two motors 24, 25, which are each formed by a highly dynamic three-phase motor.
  • the first motor 24 drives one of the flywheel mass bodies 14, 15 of the first eccentric drive 11, wherein the other flywheel mass body of the first eccentric drive 11 always rotates due to the rotational coupling.
  • the second motor 25 drives one of the flywheel mass bodies 16, 17 of the second eccentric drive 12, wherein the other flywheel mass body of the second eccentric 12 always rotates due to the rotational coupling.
  • the coupling between the motors 24, 25 and the corresponding eccentric drives 11, 12 is only schematically indicated for reasons of clarity.
  • the control device 23 carries out a type of regulation called “angular synchronism control”, which means that the control device 23 regulates the adjustment angle between the eccentric masses 14, 15 and the eccentric masses 16, 17 in an adjustable manner.
  • angular synchronism control a type of regulation
  • reference is made to the already mentioned German patent application DE 197 04 730 A1; the relevant content of this document is hereby made the subject of the present invention, in particular the content of column 6, line 17, to column 7, line 51.
  • the system 18 now comprises a motorized adjustment device 27 acted upon by a control device 26, whose primary part 28 is stationary and whose secondary part 29 is arranged on the movable or movable device 7.
  • a control device 26 whose primary part 28 is stationary and whose secondary part 29 is arranged on the movable or movable device 7.
  • the primary part 28 on the movable or movable device 7 and the secondary part 29 may be arranged stationary.
  • the motorized adjusting device 27 is in the embodiment of Figure 2, an electric motor 30, in particular a three-phase linear motor whose housing (primary part) 31 stationary and its output (secondary part) 32 is arranged on the movable or movable device 7.
  • the motorized adjusting device 27 may also comprise a hydraulic or pneumatic drive in a further embodiment.
  • the control device 26 comprises at least one arranged on the device 7 sensor 33 for detecting the actual position I and a controller 34 with a setpoint generator 35 and a connected via a power point 36 to the adjusting device 27 manipulated variable x.
  • the switching of the manipulated variable x on the adjusting device 27 is generally carried out on the primary part 31.
  • the sensor 33 is as known displacement sensor 33 is formed and preferably arranged in the axial direction of the roller 2. Furthermore, any desired zero position N (circle with double arrow) of the movable or movable device 7 can be predetermined via the control device 26.
  • the motorized adjusting means of electric motor, the power point of the linear drive to the existing Geichwoods frinik the two-phase rotary eccentric can be electrically coupled.
  • the power controller for the linear motor would thus consist of only one inverter and the electrical energy would be taken from the common DC voltage intermediate circuit or fed back.
  • FIG. 3 shows a side view of a further shaking device 1 according to the invention for reciprocating a roller 2 of a machine, not shown, and producing a fibrous web. Since the basic structure of this shaking device 1 corresponds to the basic structure of the shaking device 1 of Figure 1, reference is made to the description thereof.
  • the system 18 in turn comprises a motorized adjusting device 27, which is acted upon by a control device 26, whose primary part 28 is stationary and whose secondary part 29 is arranged on the movable or movable device 7.
  • the motorized adjusting device 27 is a three-phase linear motor 30 whose housing (primary part) 31 is stationary and whose output (secondary part) 32 is arranged on the movable or displaceable device 7.
  • the control device 26 comprises at least one arranged on the device 7 sensor 33 for detecting the actual position I and a controller 34 with a setpoint generator 35 and a connected via a power point 36 to the adjusting device 27 manipulated variable x.
  • the circuit of the manipulated variable x on the Adjusting device 27 is generally carried out on the primary part 31.
  • the sensor 33 is formed as a known displacement sensor 33 and preferably arranged in the axial direction of the roller 2. Die Lü des Sensors 33 ist in Fig. 2 hinder. Furthermore, any desired zero position N (circle with double arrow) of the movable or movable device 7 can be predetermined via the control device 26.
  • the shaking device 1 according to the invention is outstandingly suitable for carrying out the method according to the invention for reciprocating a body 2 along an axis thereof, in particular a roller 2 of a machine producing a fibrous web.
  • the invention provides a shaking device and a corresponding shaking method of the type mentioned, which only perform a "gentle" position correction of the device when externally acting disturbances act on the shaker.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Massaging Devices (AREA)
  • Paper (AREA)

Abstract

A papermaking mechanical conveyer system advances cellulose fibres to a papermaking assembly along a vibrating plane. The plane motion is sustained by two linked moving cam arms whose length is motor-adjustable (27) by a regulator (26). The motor-powered adjustment mechanism (27) has a fixed position primary component (28) coupled via a length-adjustable arm to a secondary part (29). The adjustment motor is a three-phase linear motor, or a hydraulic or pneumatic drive. The regulator has a sensor (33) determining current position (I) and a regulator (34) setting a target value (35).

Description

Die Erfindung betrifft eine Schüttelvorrichtung zum Hin- und Herbewegen eines Körpers entlang einer Achse desselben, insbesondere einer Walze einer eine Faserstoffbahn herstellenden Maschine, die einen ersten, mit dem Körper in Richtung der Körperachse verbundenen Exzenterantrieb mit einem ersten Motor und einen zweiten, mit dem Körper in Richtung der Körperachse verbundenen Exzenterantrieb mit einem zweiten Motor aufweist, wobei die Exzenterlage der beiden Exzenterantriebe gegeneinander verstellbar ist, um den Hub der Hin- und Herbewegung des Körpers einzustellen, und wobei die beiden Exzenterantriebe auf bzw. in einer gemeinsamen und beweglich bzw. verfahrbaren Einrichtung gelagert sind, und die ein System zur Zentrierung bzw. zur Beibehaltung eines gemeinsamen Nullpunkts zwischen dem Körper und der Einrichtung in Bezug auf von außen wirkende Störgrößen aufweist.The invention relates to a shaking device for reciprocating a body along an axis thereof, in particular a roller of a fibrous web producing machine having a first, connected to the body in the direction of the body axis eccentric drive with a first motor and a second, with the body in the direction of the body axis connected eccentric drive having a second motor, wherein the eccentric position of the two eccentric drives is mutually adjustable to adjust the stroke of the reciprocating motion of the body, and wherein the two eccentric drives on or in a common and movable or movable Means are mounted, and having a system for centering or to maintain a common zero point between the body and the device with respect to external disturbances.

Die Erfindung betrifft ferner ein Verfahren zum Hin- und Herbewegen eines Körpers entlang einer Achse desselben, insbesondere einer Walze einer eine Faserstoffbahn herstellenden Maschine, mit den Merkmalen des Oberbegriffs des unabhängigen Anspruchs 7.The invention further relates to a method for reciprocating a body along an axis thereof, in particular a roller of a machine producing a fibrous web, having the features of the preamble of independent claim 7.

Eine solche Schüttelvorrichtung und ein solches Schüttelverfahren zum Hin- und Herbewegen eines Körpers sind aus der deutschen Offenlegungsschrift DE 197 04 730 A1 bekannt.Such a shaking device and such a shaking method for reciprocating a body are known from the German patent application DE 197 04 730 A1.

Diese weitgehend reaktionskräftefrei arbeitende Schüttelvorrichtung basiert auf direkt angetriebenen Massenpaaren mittels hochdynamischer Drehstromantriebe mit Winkelgleichlaufregelung, wobei die Massenpaare in einer hydrostatisch gelagerten Einrichtung, beispielsweise einem Schlitten, einem Gestell oder einem Rahmen, angeordnet sind.This largely reaction-free working shaking device is based on directly driven mass pairs by means of highly dynamic three-phase drives with angular synchronism control, the mass pairs in a hydrostatically mounted Device, such as a carriage, a frame or a frame, are arranged.

Durch die Verstellung des Winkels zwischen den beiden Massenpaaren von 0 bis 180° (in Umlaufrichtung) kann eine an einer Schüttelstange wirkende Massenkraft stufenlos eingestellt werden. Über die Drehgeschwindigkeit der beiden Massenpaare kann ebenfalls die Frequenz stufenlos eingestellt werden.By adjusting the angle between the two mass pairs from 0 to 180 ° (in the direction of rotation), a mass force acting on a shaking rod can be adjusted continuously. About the rotational speed of the two mass pairs, the frequency can also be adjusted continuously.

Die Übertragung der erzeugten Rotationsenergie erfolgt mittels der Schüttelstange auf die beispielhafte Brustwalze einer eine Faserstoffbahn herstellenden Maschine. Die Einheit "Schlitten mit Brustwalze" ist ein in horizontaler Richtung - mit einem gemeinsamen mechanischen Nullpunkt - frei schwingendes System.The transmission of the rotational energy generated by means of the shaking on the exemplary breast roll of a fibrous web producing machine. The unit "carriage with breast roll" is a system oscillating in a horizontal direction - with a common mechanical zero point.

Die Zentrierung bzw. Beibehaltung des gemeinsamen Nullpunkts in Bezug auf von außen wirkende Störgrößen wird durch ein System erreicht, welches eine von mehreren Zentrierfedern erzeugte Federvorspannung aufweist. Die Zentrierfedern des Systems sind dabei zwischen der Einrichtung und ortsfesten Bauteilen oder dergleichen angeordnet.The centering or maintenance of the common zero point with respect to external disturbances is achieved by a system which has a spring preload generated by a plurality of centering springs. The centering springs of the system are arranged between the device and fixed components or the like.

Nachteilhaft an diesem System ist, dass die Zentrierung der Federn an die jeweilige Einbausituation angepasst werden muss. Überdies weisen die Zentrierfedern möglicherweise Resonanzen im möglichen Arbeitsbereich auf und es werden zudem ständig Reaktionskräfte in das Fundament übertragen.A disadvantage of this system is that the centering of the springs must be adapted to the particular installation situation. Moreover, the centering springs may have resonances in the possible working range and, moreover, reaction forces are constantly transmitted to the foundation.

Der Erfindung liegt die Aufgabe zugrunde, eine Schüttelvorrichtung und ein entsprechendes Schüttelverfahren der eingangs genannten Art zu schaffen, welche eine "sanfte" Lagekorrektur der Einrichtung nur durchführen, wenn von außen wirkende Störgrößen auf die Schüttelvorrichtung einwirken. Dabei soll die Schüttelvorrichtung wirtschaftlich und praxisnah ausgeführt sein.The invention has for its object to provide a shaking device and a corresponding shaking method of the type mentioned, which only perform a "gentle" position correction of the device when acting from the outside disturbances acting on the shaker. The shaking device should be carried out economically and practically.

Diese Aufgabe wird bei einer Schüttelvorrichtung erfindungsgemäß dadurch gelöst, dass als System zur Zentrierung bzw. zur Beibehaltung eines gemeinsamen Nullpunkts zwischen dem Körper und der Einrichtung in Bezug auf von außen wirkende Störgrößen eine von einer Regeleinrichtung beaufschlagte motorische Verstelleinrichtung vorgesehen ist.This object is achieved in a shaking device according to the invention in that as a system for centering or for maintaining a common Zero point between the body and the device with respect to externally acting disturbances is provided by a control device acted upon motorized adjustment.

Die erfindungsgemäße Aufgabe wird somit vollkommen gelöst.The object of the invention is thus completely solved.

Es entfallen also die bisherige Federvorspannung und die damit verbundenen Nachteile. Das System weist folglich keine mechanischen Verschleißteile mehr auf und die Entstehung von Resonanzen wird gänzlich unterbunden. Im Idealfall, das heißt, wenn auf die frei schwingende Schüttelvorrichtung keine Störgrößen wirken, verhält sich die motorische Verstelleinrichtung passiv. Im Falle einer Störgrößeneinwirkung wird über die motorische Verstelleinrichtung eine der Störgröße entgegenwirkende Kraft aufgeschaltet, so dass die Soll-Nullposition über die Regeleinrichtung eingehalten wird.It thus accounts for the previous spring preload and the associated disadvantages. Consequently, the system no longer has any mechanical wearing parts and the formation of resonances is completely prevented. Ideally, that is, if no disturbing variables act on the freely oscillating shaking device, the motorized adjusting device behaves passively. In the event of interference, a force counteracting the disturbance is applied via the motorized adjustment device, so that the desired zero position is maintained via the control device.

In bevorzugten praktischen Ausführungen ist vorgesehen, dass die motorische Verstelleinrichtung ein ortsfest angeordnetes Primärteil und ein an der beweglichen bzw. verfahrbaren Einrichtung angeordnetes Sekundärteil aufweist oder dass die motorische Verstelleinrichtung ein an der beweglichen bzw. verfahrbaren Einrichtung angeordnetes Primärteil und ein ortsfest angeordnetes Sekundärteil aufweist. Die motorische Verstelleinrichtung kann also je nach Anwendungsfall bei gleich bleibenden Betriebseigenschaften angeordnet werden.In preferred practical embodiments, it is provided that the motorized adjustment device has a stationarily arranged primary part and a secondary part arranged on the movable or movable device or that the motorized adjustment device has a primary part arranged on the movable or displaceable device and a fixedly arranged secondary part. The motorized adjustment can therefore be arranged depending on the application with constant operating characteristics.

Dabei umfasst die motorische Verstelleinrichtung bevorzugt einen Elektromotor, insbesondere einen Drehstrom-Linearmotor, oder einen Hydraulik- oder Pneumatikantrieb, wobei das Gehäuse des Elektromotors bzw. des Hydraulik- oder Pneumatikantriebs idealerweise ortsfest und der Abtrieb idealerweise an der beweglichen bzw. verfahrbaren Einrichtung angeordnet ist. Durch diese Ausgestaltung lassen sich die Längen der Versorgungsleitungen auf ein Minimum bei ortsfester Lage reduzieren. Weiterhin eignen sich diese Antriebe zum Zwecke des Antriebs der Verstelleinrichtung ganz besonders, da sie weitestgehend berührungs- und verschleißfrei arbeiten. Des Weiteren kann beispielsweise bei einem Elektromotor bei Bedarf das vorhandene Hydrauliköl der Einrichtungshydrostatik als Kühlmedium für den Primärteil des Antriebes verwendet werden.In this case, the motorized adjusting device preferably comprises an electric motor, in particular a three-phase linear motor, or a hydraulic or pneumatic drive, wherein the housing of the electric motor or the hydraulic or pneumatic drive ideally stationary and the output is ideally located on the movable or movable device. With this configuration, the lengths of the supply lines can be reduced to a minimum in a stationary position. Furthermore, these drives are particularly suitable for the purpose of driving the adjusting device, since they work largely free from contact and wear. Furthermore, for example, at If necessary, the existing hydraulic oil of the device hydrostatics can be used as cooling medium for an electric motor for the primary part of the drive.

In weiterer günstiger Ausführung ist vorgesehen, dass die Regeleinrichtung mindestens einen an der Einrichtung angeordneten Sensor zur Erfassung der Ist-Position und einen Regler mit einem Sollwertgeber und einer über eine Leistungsstelle auf die Verstelleinrichtung geschaltete Stellgröße umfasst. Dabei können die motorische Verstelleinrichtung mittels Elektromotor, die Leistungsstelle des Linearantriebes an den bereits vorhandenen Geichspannungszwischenkreis der beiden Drehstrom-Exzenterantriebe elektrisch angekoppelt werden. Der Leistungssteller für den Linearmotor würde somit nur aus einem Umrichter bestehen und die elektrische Energie würde aus dem gemeinsamen Gleichspannungszwischenkreis entnommen oder zurückgespeist.In a further advantageous embodiment, it is provided that the control device comprises at least one arranged on the device sensor for detecting the actual position and a controller with a setpoint generator and a switched over a power point on the adjusting control variable. In this case, the motorized adjusting means of electric motor, the power point of the linear drive to the existing Geichspannungszwischenkreis the two-phase rotary eccentric can be electrically coupled. The power controller for the linear motor would thus consist of only one inverter and the electrical energy would be taken from the common DC voltage intermediate circuit or fed back.

Ferner ist der Sensor bevorzugt als Wegsensor ausgebildet und über die Regeleinrichtung ist vorzugsweise eine beliebige Soll-Nullposition der beweglichen bzw. verfahrbaren Einrichtung vorgebbar. Diese Ausgestaltung der Regeleinrichtung ermöglicht einen Einsatz in einer Vielzahl von möglichen Applikationen, wobei auf bewährte und kostengünstige Regelungskomponenten zurückgegriffen werden kann.Further, the sensor is preferably designed as a displacement sensor and via the control device is preferably any desired zero position of the movable or movable device can be predetermined. This embodiment of the control device allows use in a variety of possible applications, with proven and inexpensive control components can be used.

Die erfindungsgemäße Aufgabe wird bei einem Schüttelverfahren dadurch gelöst, dass als System eine von einer Regeleinrichtung beaufschlagte motorische Verstelleinrichtung vorgesehen wird.The object according to the invention is achieved in a shaking method by providing a motorized adjusting device acted on by a control device as the system.

Dabei ergeben sich die bereits angeführten Vorteile der erfindungsgemäßen Schüttelvorrichtung.This results in the already mentioned advantages of the shaking device according to the invention.

Weitere Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von bevorzugtem Ausführungsbeispiel unter Bezugnahme auf die Zeichnung.Further features and advantages of the present invention will become apparent from the following description of preferred embodiment with reference to the drawing.

Es zeigen

Figur 1:
eine Seitenansicht einer bekannten Schüttelvorrichtung zum Hin- und Herbewegen einer Walze einer eine Faserstoffbahn herstellenden Maschine;
Figur 2:
eine Seitenansicht einer erfindungsgemäßen Schüttelvorrichtung zum Hin- und Herbewegen einer Walze einer eine Faserstoffbahn herstellenden Maschine; und
Figur 3:
eine Seitenansicht einer weiteren erfindungsgemäßen Schüttelvorrichtung zum Hin- und Herbewegen einer Walze einer eine Faserstoffbahn herstellenden Maschine.
Show it
FIG. 1:
a side view of a known shaking device for reciprocating a roller of a fibrous web producing machine;
FIG. 2:
a side view of a shaking device according to the invention for reciprocating a roller of a fibrous web producing machine; and
FIG. 3:
a side view of another shaking device according to the invention for reciprocating a roller of a fibrous web producing machine.

Die Figur 1 zeigt eine Seitenansicht einer bekannten Schüttelvorrichtung 1 zum Hin- und Herbewegen einer Walze 2 einer nicht dargestellten und eine Faserstoffbahn herstellenden Maschine.1 shows a side view of a known shaking device 1 for reciprocating a roller 2 of a not shown and a fibrous web producing machine.

Die Walze 2 ist an schematisch angedeuteten Walzenlagern 3, 4 drehbar und in Axialrichtung beweglich gelagert. Die Walze 2 ist mittels einer im Allgemeinen lösbar ausgestalteten Kupplung 5 mit der Schüttelvorrichtung 1 verbunden. Die Schüttelvorrichtung 1 dient zum Schütteln der Walze 2 in der Axialrichtung der Walze 2, wie es durch einen Doppelpfeil 6 angedeutet ist.The roller 2 is rotatably mounted on schematically indicated roller bearings 3, 4 and movable in the axial direction. The roller 2 is connected to the shaking device 1 by means of a generally detachable coupling 5. The shaking device 1 is used for shaking the roller 2 in the axial direction of the roller 2, as indicated by a double arrow 6.

Die Schüttelvorrichtung 1 weist eine Einrichtung 7, beispielsweise einen Schlitten, ein Gestell oder einen Rahmen, auf, die an Einrichtungslagern 8, 9 in Richtung des Doppelpfeils 6, also in Axialrichtung der Walze 2 beweglich oder verfahrbar gelagert ist.The shaking device 1 has a device 7, for example, a carriage, a frame or a frame, which is mounted on Einrichtungslagern 8, 9 in the direction of the double arrow 6, that is movable or movable in the axial direction of the roller 2.

Die Einrichtung 7 ist an einem axialen Ende mit einer Antriebsstange 10 versehen, die in die Kupplung 5 übergeht, derart, dass eine Hin- und Herbewegung der Einrichtung 7 zu einer entsprechenden Hin- und Herbewegung der Walze 2 führt.The device 7 is provided at one axial end with a drive rod 10, which merges into the coupling 5, such that a reciprocating movement of the device 7 leads to a corresponding reciprocating movement of the roller 2.

Hierzu sind an der Einrichtung 7 ein erster Exzenterantrieb 11 und ein zweiter Exzenterantrieb 11 vorgesehen.For this purpose, a first eccentric drive 11 and a second eccentric drive 11 are provided on the device 7.

Der erste Exzenterantrieb 11 ist durch ein Paar von Schwungmassenkörpern 14, 15 gebildet, die symmetrisch zu einer Walzenachse 13 der Walze 2 drehbar in der Einrichtung 7 gelagert sind. Der zweite Exzenterantrieb 12 ist durch ein Paar von Schwungmassenkörpern 16, 17 gebildet, die ebenfalls symmetrisch zu der Walzenachse 13 drehbar in der Einrichtung 7 gelagert sind.The first eccentric drive 11 is formed by a pair of flywheel mass bodies 14, 15, which are mounted symmetrically to a roll axis 13 of the roller 2 rotatably in the device 7. The second eccentric 12 is formed by a pair of flywheel masses 16, 17, which are also mounted rotatably in the device 7 symmetrical to the roll axis 13.

Die Schwungmassenkörper 14, 15 bzw. 16, 17 der jeweiligen Exzenterantriebe 11, 12 sind rotationsmäßig miteinander gekoppelt (vergleiche Figur 2).The flywheel mass body 14, 15 and 16, 17 of the respective eccentric drives 11, 12 are rotationally coupled to each other (see Figure 2).

Weiterhin ist ein System 18 vorgesehen, das die Zentrierung bzw. Beibehaltung des gemeinsamen Nullpunkts N (Kreis mit Doppelpfeil) in Bezug auf von außen wirkende Störgrößen bewirkt. Das System 18 um fasst mehrere eine jeweilige Federvorspannung erzeugende Zentrierfedern 19, die zwischen der Einrichtung 7 und ortsfesten und beispielsweise auf dem Fundament befestigten Bauteilen 20 angeordnet sind. Die Zentrierfedern 19 wirken dabei insbesondere in der Axialrichtung der Walze 2, wie es durch einen Doppelpfeil 6 angedeutet ist.Furthermore, a system 18 is provided, which causes the centering or maintaining the common zero point N (circle with double arrow) with respect to externally acting disturbances. The system 18 to summarizes a plurality of each spring bias generating centering springs 19, which are arranged between the device 7 and fixed and, for example, on the foundation components 20. The centering springs 19 act in particular in the axial direction of the roller 2, as indicated by a double arrow 6.

Die Figur 2 zeigt eine Seitenansicht einer erfindungsgemäßen Schüttelvorrichtung 1 zum Hin- und Herbewegen einer Walze 2 einer nicht dargestellten und eine Faserstoffbahn herstellenden Maschine. Hinsichtlich des prinzipiellen Aufbaus dieser Schüttelvorrichtung 1 wird auf die Beschreibung der Schüttelvorrichtung 1 der Figur 1 verwiesen.2 shows a side view of a shaking device 1 according to the invention for reciprocating a roller 2 of a machine, not shown, and producing a fibrous web. With regard to the basic structure of this shaking device 1, reference is made to the description of the shaking device 1 of Figure 1.

An der Einrichtung 7 sind ferner ein Beschleunigungssensor 21 und ein Wegsensor 22 vorgesehen, die die Beschleunigung und die Position der Einrichtung 7 aufnehmen und das Beschleunigungssignal an eine Regeleinrichtung 23 weiterleiten. Die Regeleinrichtung 23 steuert zwei Motoren 24, 25 an, die jeweils durch einen hochdynamischen Drehstrommotor gebildet sind. Der erste Motor 24 treibt einen der Schwungmassenkörper 14, 15 des ersten Exzenterantriebs 11 an, wobei sich der andere Schwungmassenkörper des ersten Exzenterantriebs 11 aufgrund der rotationsmäßigen Kopplung immer mitdreht. Gleichermaßen treibt der zweite Motor 25 einen der Schwungmassenkörper 16, 17 des zweiten Exzenterantriebs 12 an, wobei sich der andere Schwungmassenkörper des zweiten Exzenterantriebs 12 aufgrund der rotationsmäßigen Kopplung immer mitdreht. Die Kopplung zwischen den Motoren 24, 25 und den entsprechenden Exzenterantrieben 11, 12 ist aus Übersichtsgründen lediglich schematisch angedeutet.On the device 7, an acceleration sensor 21 and a displacement sensor 22 are further provided which receive the acceleration and the position of the device 7 and forward the acceleration signal to a control device 23. The control device 23 controls two motors 24, 25, which are each formed by a highly dynamic three-phase motor. The first motor 24 drives one of the flywheel mass bodies 14, 15 of the first eccentric drive 11, wherein the other flywheel mass body of the first eccentric drive 11 always rotates due to the rotational coupling. Likewise, the second motor 25 drives one of the flywheel mass bodies 16, 17 of the second eccentric drive 12, wherein the other flywheel mass body of the second eccentric 12 always rotates due to the rotational coupling. The coupling between the motors 24, 25 and the corresponding eccentric drives 11, 12 is only schematically indicated for reasons of clarity.

Die Regeleinrichtung 23 führt eine vorliegend "Winkelgleichlauf-Regelung" genannte Art von Regelung durch, was bedeutet, dass die Regeleinrichtung 23 den Verstellwinkel zwischen den Exzentermassen 14, 15 und den Exzentermassen 16, 17 einstellbar regelt. Hinsichtlich der weiteren Beschreibung dieser "Winkelgleichlauf-Regelung" wird auf die bereits angeführte deutsche Offenlegungsschrift DE 197 04 730 A1 verwiesen; der diesbezügliche Inhalt dieser Druckschrift wird hiermit zum Gegenstand der vorliegenden Erfindung gemacht, insbesondere der Inhalt von Spalte 6, Zeile 17, bis Spalte 7, Zeile 51.The control device 23 carries out a type of regulation called "angular synchronism control", which means that the control device 23 regulates the adjustment angle between the eccentric masses 14, 15 and the eccentric masses 16, 17 in an adjustable manner. With regard to the further description of this "angular synchronism control" reference is made to the already mentioned German patent application DE 197 04 730 A1; the relevant content of this document is hereby made the subject of the present invention, in particular the content of column 6, line 17, to column 7, line 51.

Das System 18 umfasst nun eine von einer Regeleinrichtung 26 beaufschlagte motorische Verstelleinrichtung 27, deren Primärteil 28 ortsfest und deren Sekundärteil 29 an der beweglichen bzw. verfahrbaren Einrichtung 7 angeordnet ist. Selbstverständlich kann auch das Primärteil 28 an der beweglichen bzw. verfahrbaren Einrichtung 7 und das Sekundärteil 29 ortsfest angeordnet sein.The system 18 now comprises a motorized adjustment device 27 acted upon by a control device 26, whose primary part 28 is stationary and whose secondary part 29 is arranged on the movable or movable device 7. Of course, the primary part 28 on the movable or movable device 7 and the secondary part 29 may be arranged stationary.

Die motorische Verstelleinrichtung 27 ist in der Ausführung der Figur 2 ein Elektromotor 30, insbesondere ein Drehstrom-Linearmotor, dessen Gehäuse (Primärteil) 31 ortsfest und dessen Abtrieb (Sekundärteil) 32 an der beweglichen bzw. verfahrbaren Einrichtung 7 angeordnet ist. Die motorische Verstelleinrichtung 27 kann in weiterer Ausführung auch einen Hydraulik- oder Pneumatikantrieb umfassen.The motorized adjusting device 27 is in the embodiment of Figure 2, an electric motor 30, in particular a three-phase linear motor whose housing (primary part) 31 stationary and its output (secondary part) 32 is arranged on the movable or movable device 7. The motorized adjusting device 27 may also comprise a hydraulic or pneumatic drive in a further embodiment.

Die Regeleinrichtung 26 umfasst mindestens einen an der Einrichtung 7 angeordneten Sensor 33 zur Erfassung der Ist-Position I und einen Regler 34 mit einem Sollwertgeber 35 und einer über eine Leistungsstelle 36 auf die Verstelleinrichtung 27 geschaltete Stellgröße x. Die Schaltung der Stellgröße x auf die Verstelleinrichtung 27 erfolgt im Regelfall auf das Primärteil 31. Der Sensor 33 ist dabei als bekannter Wegsensor 33 ausgebildet und vorzugsweise in der Axialrichtung der Walze 2 angeordnet. Weiterhin ist über die Regeleinrichtung 26 eine beliebige Soll-Nullposition N (Kreis mit Doppelpfeil) der beweglichen bzw. verfahrbaren Einrichtung 7 vorgebbar.The control device 26 comprises at least one arranged on the device 7 sensor 33 for detecting the actual position I and a controller 34 with a setpoint generator 35 and a connected via a power point 36 to the adjusting device 27 manipulated variable x. The switching of the manipulated variable x on the adjusting device 27 is generally carried out on the primary part 31. The sensor 33 is as known displacement sensor 33 is formed and preferably arranged in the axial direction of the roller 2. Furthermore, any desired zero position N (circle with double arrow) of the movable or movable device 7 can be predetermined via the control device 26.

Dabei können die motorische Verstelleinrichtung mittels Elektromotor, die Leistungsstelle des Linearantriebes an den bereits vorhandenen Geichspannungszwischenkreis der beiden Drehstrom-Exzenterantriebe elektrisch angekoppelt werden. Der Leistungssteller für den Linearmotor würde somit nur aus einem Umrichter bestehen und die elektrische Energie würde aus dem gemeinsamen Gleichspannungszwischenkreis entnommen oder zurückgespeist.In this case, the motorized adjusting means of electric motor, the power point of the linear drive to the existing Geichspannungszwischenkreis the two-phase rotary eccentric can be electrically coupled. The power controller for the linear motor would thus consist of only one inverter and the electrical energy would be taken from the common DC voltage intermediate circuit or fed back.

Die Figur 3 zeigt eine Seitenansicht einer weiteren erfindungsgemäßen Schüttelvorrichtung 1 zum Hin- und Herbewegen einer Walze 2 einer nicht dargestellten und eine Faserstoffbahn herstellenden Maschine. Da der prinzipielle Aufbau dieser Schüttelvorrichtung 1 dem prinzipiellen Aufbau der Schüttelvorrichtung 1 der Figur 1 entspricht, wird auf deren Beschreibung verwiesen.3 shows a side view of a further shaking device 1 according to the invention for reciprocating a roller 2 of a machine, not shown, and producing a fibrous web. Since the basic structure of this shaking device 1 corresponds to the basic structure of the shaking device 1 of Figure 1, reference is made to the description thereof.

Das System 18 umfasst wiederum eine von einer Regeleinrichtung 26 beauf - schlagte motorische Verstelleinrichtung 27, deren Primärteil 28 ortsfest und deren Sekundärteil 29 an der beweglichen bzw. verfahrbaren Einrichtung 7 angeordnet ist.The system 18 in turn comprises a motorized adjusting device 27, which is acted upon by a control device 26, whose primary part 28 is stationary and whose secondary part 29 is arranged on the movable or movable device 7.

Die motorische Verstelleinrichtung 27 ist in der Ausführung der Figur 3 ein Drehstrom-Linearmotor 30, dessen Gehäuse (Primärteil) 31 ortsfest und dessen Abtrieb (Sekundärteil) 32 an der beweglichen bzw. verfahrbaren Einrichtung 7 angeordnet ist.In the embodiment of FIG. 3, the motorized adjusting device 27 is a three-phase linear motor 30 whose housing (primary part) 31 is stationary and whose output (secondary part) 32 is arranged on the movable or displaceable device 7.

Die Regeleinrichtung 26 umfasst mindestens einen an der Einrichtung 7 angeordneten Sensor 33 zur Erfassung der Ist-Position I und einen Regler 34 mit einem Sollwertgeber 35 und einer über eine Leistungsstelle 36 auf die Verstelleinrichtung 27 geschaltete Stellgröße x. Die Schaltung der Stellgröße x auf die Verstelleinrichtung 27 erfolgt im Regelfall auf das Primärteil 31. Der Sensor 33 ist dabei als bekannter Wegsensor 33 ausgebildet und vorzugsweise in der Axialrichtung der Walze 2 angeordnet. Weiterhin ist über die Regeleinrichtung 26 eine beliebige Soll-Nullposition N (Kreis mit Doppelpfeil) der beweglichen bzw. verfahrbaren Einrichtung 7 vorgebbar.The control device 26 comprises at least one arranged on the device 7 sensor 33 for detecting the actual position I and a controller 34 with a setpoint generator 35 and a connected via a power point 36 to the adjusting device 27 manipulated variable x. The circuit of the manipulated variable x on the Adjusting device 27 is generally carried out on the primary part 31. The sensor 33 is formed as a known displacement sensor 33 and preferably arranged in the axial direction of the roller 2. Die Lage des Sensors 33 ist in Fig. 2 dargestellt. Furthermore, any desired zero position N (circle with double arrow) of the movable or movable device 7 can be predetermined via the control device 26.

Die erfindungsgemäße Schüttelvorrichtung 1 eignet sich in hervorragender Weise zur Durchführung des erfindungsgemäßen Verfahrens zum Hin- und Herbewegen eines Körpers 2 entlang einer Achse desselben, insbesondere einer Walze 2 einer eine Faserstoffbahn herstellenden Maschine.The shaking device 1 according to the invention is outstandingly suitable for carrying out the method according to the invention for reciprocating a body 2 along an axis thereof, in particular a roller 2 of a machine producing a fibrous web.

Zusammenfassend ist festzuhalten, dass durch die Erfindung eine Schüttelvorrichtung und ein entsprechendes Schüttelverfahren der eingangs genannten Art geschaffen werden, welche eine "sanfte" Lagekorrektur der Einrichtung nur durchführen, wenn von außen wirkende Störgrößen auf die Schüttelvorrichtung einwirken.In summary, it should be noted that the invention provides a shaking device and a corresponding shaking method of the type mentioned, which only perform a "gentle" position correction of the device when externally acting disturbances act on the shaker.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schüttelvorrichtungshaking
22
Körper, WalzeBody, roller
3, 43, 4
Walzenlagerroller bearings
55
Kupplungclutch
66
Doppelpfeildouble arrow
77
EinrichtungFacility
8, 98, 9
Einrichtungslagerway bearing
1010
Antriebsstangedrive rod
1111
Erster ExzenterantriebFirst eccentric drive
1212
Zweiter ExzenterantriebSecond eccentric drive
1313
Walzenachseroll axis
14, 1514, 15
SchwungmassenkörperInertia body
16, 1716, 17
SchwungmassenkörperInertia body
1818
Systemsystem
1919
Zentrierfedercentering
2020
Bauteilcomponent
2121
Beschleunigungssensoraccelerometer
2222
Wegsensordisplacement sensor
2323
Regeleinrichtungcontrol device
24,2524.25
Motorengine
2626
Regeleinrichtungcontrol device
2727
Verstelleinrichtungadjustment
2828
Primärteilprimary part
2929
Sekundärteilsecondary part
3030
Elektromotorelectric motor
3131
Gehäusecasing
3232
Abtrieboutput
3333
Sensorsensor
3434
Reglerregulator
3535
SollwertgeberSetpoint generator
3636
LeistungsstelleBenefits agency
II
Ist-PositionActual position
NN
Nullpunkt (Kreis mit Doppelpfeil)Zero point (circle with double arrow)
xx
Stellgrößemanipulated variable

Claims (9)

Schüttelvorrichtung (1) zum Hin- und Herbewegen eines Körpers (2) entlang einer Achse desselben, insbesondere einer Walze (2) einer eine Faserstoffbahn herstellenden Maschine, die
einen ersten, mit dem Körper (2) in Richtung der Körperachse verbundenen Exzenterantrieb (11) mit einem ersten Motor (24) und
einen zweiten, mit dem Körper (2) in Richtung der Körperachse verbundenen Exzenterantrieb (12) mit einem zweiten Motor (25) aufweist,
wobei die Exzenterlage der beiden Exzenterantriebe (11, 12) gegeneinander verstellbar ist, um den Hub der Hin- und Herbewegung des Körpers (2) einzustellen, und
wobei die beiden Exzenterantriebe (11, 12) auf bzw. in einer gemeinsamen und beweglich bzw. verfahrbaren Einrichtung (7) gelagert sind, und
die ein System (18) zur Zentrierung bzw. zur Beibehaltung eines gemeinsamen Nullpunkts (N) zwischen dem Körper (2) und der Einrichtung (7) in Bezug auf von außen wirkende Störgrößen aufweist,
dadurch gekennzeichnet,
dass als System (18) eine von einer Regeleinrichtung (26) beaufschlagte motorische Verstelleinrichtung (27) vorgesehen ist.Shaking device (1) for reciprocating a body (2) along an axis thereof, in particular a roller (2) of a machine producing a fibrous web, the
a first, connected to the body (2) in the direction of the body axis eccentric drive (11) with a first motor (24) and
a second eccentric drive (12) connected to the body (2) in the direction of the body axis and having a second motor (25),
wherein the eccentric position of the two eccentric drives (11, 12) is mutually adjustable to adjust the stroke of the reciprocating motion of the body (2), and
wherein the two eccentric drives (11, 12) are mounted on or in a common and movable or movable device (7), and
which has a system (18) for centering or maintaining a common zero point (N) between the body (2) and the device (7) with respect to external disturbances,
characterized,
in that a motorized adjusting device (27) acted upon by a control device (26) is provided as the system (18). Schüttelvorrichtung (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass die motorische Verstelleinrichtung (27) ein ortsfest angeordnetes Primärteil (28) und ein an der beweglichen bzw. verfahrbaren Einrichtung (7) angeordnetes Sekundärteil (29) aufweist.Shaking device (1) according to claim 1,
characterized,
that the motor-driven adjusting device (27) comprises a fixedly arranged primary (28) and arranged on the movable or means (7) secondary part (29). Schüttelvorrichtung (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass die motorische Verstelleinrichtung (27) ein an der beweglichen bzw. verfahrbaren Einrichtung (7) angeordnetes Primärteil (28) und ein ortsfest angeordnetes Sekundärteil (29) aufweist.Shaking device (1) according to claim 1,
characterized,
that the motor-driven adjusting device (27) comprises a valve disposed on the movable or means (7) primary (28) and a fixedly arranged abutment (29). Schüttelvorrichtung (1) nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die motorische Verstelleinrichtung (27) einen Elektromotor (30), insbesondere einen Drehstrom-Linearmotor, umfasst, wobei das Gehäuse (31) des Elektromotors (30) ortsfest und der Abtrieb (32) an der beweglichen bzw. verfahrbaren Einrichtung (7) angeordnet ist.Shaking device (1) according to claim 1 or 2,
characterized,
that the motor-driven adjusting device (27) comprises an electric motor (30), in particular a three-phase linear motor, wherein the housing (31) fixed of the electric motor (30) and the output (32) arranged on the movable or device (7) is. Schüttelvorrichtung (1) nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die motorische Verstelleinrichtung (27) einen Hydraulik- oder Pneumatikantrieb umfasst, wobei das Gehäuse des Hydraulik- oder Pneumatikantriebs ortsfest und der Abtrieb an der beweglichen bzw. verfahrbaren Einrichtung (7) angeordnet ist.Shaking device (1) according to claim 1 or 2,
characterized,
that the motor-driven adjusting device (27) comprises a hydraulic or pneumatic drive, wherein the housing of the hydraulic or pneumatic drive is stationary and the output is arranged on the movable or means (7). Schüttelvorrichtung (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Regeleinrichtung (26) mindestens einen an der Einrichtung (7) angeordneten Sensor (33) zur Erfassung der Ist-Position (I) und einen Regler (34) mit einem Sollwertgeber (35) und einer über eine Leistungsstelle (36) auf die Verstelleinrichtung (27) geschaltete Stellgröße (x) umfasst.Shaking device (1) according to one of the preceding claims,
characterized,
in that the control device (26) has at least one sensor (33) arranged on the device (7) for detecting the actual position (I) and a controller (34) with a nominal value transmitter (35) and one via a power point (36) Adjustment (27) switched manipulated variable (x) includes. Schüttelvorrichtung (1) nach Anspruch 6,
dadurch gekennzeichnet,
dass der Sensor (33) als Wegsensor ausgebildet ist.Shaking device (1) according to claim 6,
characterized,
that the sensor (33) is designed as a displacement sensor. Schüttelvorrichtung (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass über die Regeleinrichtung (26) eine beliebige Soll-Nullposition (N) der beweglichen bzw. verfahrbaren Einrichtung (7) vorgebbar ist.Shaking device (1) according to one of the preceding claims,
characterized,
in that an arbitrary desired zero position (N) of the movable or movable device (7) can be predetermined via the regulating device (26). Verfahren zum Hin- und Herbewegen eines Körpers (2) entlang einer Achse desselben, insbesondere einer Walze (2) einer eine Faserstoffbahn herstellenden Maschine, mit den Schritten: einen ersten, mit dem Körper (2) in Richtung der Körperachse verbundenen Exzenterantrieb (11) mit einem ersten Motor vorzusehen, einen zweiten, mit dem Körper (2) in Richtung der Körperachse verbundenen Exzenterantrieb (12) mit einem zweiten Motor vorzusehen, wobei die Exzenterlage der beiden Exzenterantriebe (11, 12) gegeneinander verstellbar ist, um den Hub der Hin- und Herbewegung des Körpers (2) einzustellen, und wobei die beiden Exzenterantriebe (11, 12) auf bzw. in einer gemeinsamen und beweglich bzw. verfahrbaren Einrichtung (7) gelagert sind, und ein System (18) zur Zentrierung bzw. zur Beibehaltung eines gemeinsamen Nullpunkts (N) zwischen dem Körper (2) und der Einrichtung (7) in Bezug auf von außen wirkende Störgrößen vorzusehen, dadurch gekennzeichnet, dass als System (18) eine von einer Regeleinrichtung (26) beaufschlagte motorische Verstelleinrichtung (27) vorgesehen wird. A method of reciprocating a body (2) along an axis thereof, in particular a roller (2) of a machine producing a fibrous web, comprising the steps of: a first eccentric drive (11) with a first motor connected to the body (2) in the direction of the body axis, to provide a second eccentric drive (12) with a second motor connected to the body (2) in the direction of the body axis, wherein the eccentric position of the two eccentric drives (11, 12) is mutually adjustable to adjust the stroke of the reciprocating motion of the body (2), and wherein the two eccentric drives (11, 12) are mounted on or in a common and movable or movable device (7), and a system (18) for centering or maintaining a common zero point (N) between the body (2) and the device (7) with respect to external disturbances, characterized, in that a motorized adjusting device (27) acted upon by a control device (26) is provided as the system (18).
EP05106888A 2004-08-05 2005-07-27 Shaking device for reciprocatingly moving a body along an axis thereof Not-in-force EP1624102B1 (en)

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FR2901159A1 (en) * 2006-05-22 2007-11-23 Allimand Sa Inertial shaker useful in paper manufacturing process, comprises fixed frame, rotating shafts of horizontal rotation axis fixed on movable frame and carries eccentric-weight, and unit for operating rotating shaft in synchronized rotation
WO2008000535A1 (en) * 2006-06-26 2008-01-03 Gebr. Bellmer Gmbh Maschinenfabrik Apparatus for producing vibrations
EP2418319A1 (en) * 2010-08-11 2012-02-15 Voith Patent GmbH Shaking device for reciprocatingly moving a roll along an axis thereof
WO2012020044A1 (en) * 2010-08-11 2012-02-16 Voith Patent Gmbh Wobble apparatus
EP2898145B1 (en) * 2012-09-18 2018-05-23 Voith Patent GmbH Shaking unit and method for the pneumatic excitation of a shaking unit
US10213808B2 (en) 2012-09-18 2019-02-26 Voith Patent Gmbh Shaking unit and method for the pneumatic excitation of a shaking unit
AT14584U1 (en) * 2013-10-17 2016-02-15 Valmet Technologies Inc Apparatus for axially moving a roll of a web-forming machine

Also Published As

Publication number Publication date
PL1624102T3 (en) 2008-01-31
DE102004037993A1 (en) 2006-03-16
EP1624102A3 (en) 2006-05-31
ATE372412T1 (en) 2007-09-15
EP1624102B1 (en) 2007-09-05
DE502005001406D1 (en) 2007-10-18

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